Resonator.



P. E. PINLAY.

RESONATOR.

APPLICATION FILED NOV. 24, 1908.

Patented July 13, 1909.

WITNESSES Arron/ms UNITED" srA'rEs PATENT." OFFICE.

PATRICK E. FINLAY, or NEWVQRLEANS, LOUISIANA.

RESONATOR. I

I Specification of Letters Patent.

Patented .Tu1y13 1909.

Applicafion filed ifl'ovember 24, 196?. Serial No. 464,239.

To all whom it may concern:

Be] it known that I, PATRICK E. FINLAY, a citizen of the United States, and a resident of New Orleans, in the parish of Orleans and State of Louisiana, have invented a newand- Improved Resonator, of which the following is a full, clear, and exact description.

- more. esgeciall The invention is an improved resonator, designed for augmenting the soun of te e hone bells or other signals,

. and is particular y adapted to the telephones of shops, umping stations and other places where or inary sounds are not discernible,-

especial1y under heavy atmospheric conditions or in damp or rainy weather.

The invention' may be defined as consisting of an elongated dished body having sound reflectors at opposite ends facing forwardly andlinwardlyf'and a similar sound reflector overhanging the center of the bodyand facing downwardly and'\i nwardly.

Reference is to'be had to the accdmpanying drawings forming a part .of this specification, in which similar characters of reference indicate corresponding parts inall the views Figure '1 is a perspective view of a telee phone'having my improved amplifier or resonator applied thereto; Fig. 2 is a central ver tical section through the same; and Fig. 3

is a horizontal sectionfsubstantially on the 'line 33 of Fig. 2. v

- For convenience of illustration- I, have shown my invention applied to a well-known form of telephone 5 having two bells 6, 6, on

thefront face thereof, between which the usual vibratory striking arm 7 projects.

The,resonator consists of an elongated sound-'reflectingbody Shaving reflectors 9,

passing through the body atits center. The reflectors 9, atopposite ends, and an'overhanging reflector 10, the body being of sheet material as, for example, sheet brass, and dished, with a flat bottom portion which is attached to the front face of the telephone, suitableopenings being provided for the race tion ofthe-bells and vibratory striker, the atter 9 are preferably cone shaped and integral with the body and face forwardly and inwardly, with their foci located'a substantial distance forwardly of the resonator on the principal or central axis. The reflector 10 is similar in construction to the reflectors .9, and faces downwardly .and inwardly,.- serving to collect and reflect vthe sound waves against the dished reflecting body. Thatportion ofthe reflector 10 extending to and attached to the body 8 is downwardly and inwardly approximately cone-shaped sound reflecters forwardlyandinwardly. v

4. A resonator having .dished reflectors at lifying opposite ends for collecting and am forwardly and inwardly, and a dished reflector elevated above the said reflectors for downwardly an inwardly. 5- A resonator consisting of a dished body having a flattened body and attached thereto.

- In testimony whereof I have-signed my two subscribing witnesses. v I

PATRICK E. 'FINLAY.

Witnesses:

WM. WALTER DUNCAN WALTER H. ELLIS.-

T claim as new. and desire to secure by Letters facing forwardly and inwardly, and anoverhanging sound reflector independent of the side reflectors carried by the bpdy, facing;

3. A resonator comprismg'a body having at opposite ends integral therewith and facing the sound and pi ojectingthesoun waves collecting and rojecting the sound waves name to this specification "in the presence of .tangent thereto-and flattened, in order that.

7 bottom with conical sound collectorsv at opposite ends, and a conical sound collector overhanging the 

